{"id":11126,"date":"2018-11-12T09:00:10","date_gmt":"2018-11-12T14:00:10","guid":{"rendered":"https:\/\/michigan.it.umich.edu\/news\/?p=11126"},"modified":"2024-07-08T06:05:41","modified_gmt":"2024-07-08T10:05:41","slug":"ai-lie-detector","status":"publish","type":"post","link":"https:\/\/michigan.it.umich.edu\/news\/2018\/11\/12\/ai-lie-detector\/","title":{"rendered":"Can an AI lie detector tell when you’re fibbing?"},"content":{"rendered":"
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(geralt, pixabay, CC0 Creative Commons)<\/a><\/p><\/div>\n

Artificial intelligence is everywhere\u2014but here\u2019s a use you may not have considered: lie detection. It sounds like science fiction, but such an AI system is possible<\/a>. The question is: How accurate can it be? Rada Mihalcea<\/strong>, a professor of computer science and engineering at U-M, has worked on deception detection for about a decade.<\/p>\n<\/div>\n<\/div>\n<\/header>\n

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Mihalcea’s used 121 video clips from actual court cases and the corresponding transcripts of what they said. About half represented deceptive statements, and half truthful. They then used this data to build machine learning classifiers that discovered verbal and physical cues indicating that a person was perhaps not being truthful\u2014an AI “lie detector” in other words.<\/p>\n

But Mihalcea\u2019s work is \u201cnot perfect,\u201d she concedes. The system her team developed has between a 60 to 75 percent accuracy rate. \u201cAs a researcher, we are excited we were able to get to 75 percent.\u201d But looked at another way, that\u2019s an error rate of one in four. \u201cI don\u2019t think it\u2019s ready to be used in practice.\u201d<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n","protected":false},"excerpt":{"rendered":"

Artificial intelligence is everywhere\u2014but here\u2019s a use you may not have considered: lie detection. It sounds like science fiction, but such an AI system is possible. The question is: How accurate can it be? Rada Mihalcea, a professor of computer science and engineering at U-M, has worked on deception detection for about a decade. Mihalcea’s used 121 video\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":11130,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_umich_oidc_access":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_ef_editorial_meta_date_first-draft-date":"","_ef_editorial_meta_paragraph_assignment":"","_ef_editorial_meta_checkbox_needs-photo":"","_ef_editorial_meta_number_word-count":"","footnotes":""},"categories":[5],"tags":[61,217,130],"class_list":["post-11126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-campus-news","tag-ai","tag-culture","tag-research"],"uagb_featured_image_src":{"full":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"thumbnail":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-200x140.jpg",200,140,true],"medium":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-284x200.jpg",284,200,true],"medium_large":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"large":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"1536x1536":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"2048x2048":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"excerpt-thumbnail":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-200x140.jpg",200,140,true],"themonic-thumbnail":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-60x42.jpg",60,42,true],"ioslider-thumbnail":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-640x300.jpg",640,300,true],"post-thumbnail":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",600,423,false],"400x250-crop":["https:\/\/michigan.it.umich.edu\/news\/wp-content\/uploads\/2018\/12\/directory-1187128_640-e1544122826577.jpg",355,250,false]},"uagb_author_info":{"display_name":"News Staff","author_link":"https:\/\/michigan.it.umich.edu\/news\/author\/mitnewsadm\/"},"uagb_comment_info":0,"uagb_excerpt":"Artificial intelligence is everywhere\u2014but here\u2019s a use you may not have considered: lie detection. It sounds like science fiction, but such an AI system is possible. The question is: How accurate can it be? Rada Mihalcea, a professor of computer science and engineering at U-M, has worked on deception detection for about a decade. Mihalcea’s…","_links":{"self":[{"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/posts\/11126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/comments?post=11126"}],"version-history":[{"count":5,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/posts\/11126\/revisions"}],"predecessor-version":[{"id":11133,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/posts\/11126\/revisions\/11133"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/media\/11130"}],"wp:attachment":[{"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/media?parent=11126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/categories?post=11126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/michigan.it.umich.edu\/news\/wp-json\/wp\/v2\/tags?post=11126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}